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Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 228-233 doi: 10.1007/s11709-009-0019-0

Abstract: The application of pile-end post-grouting piles for super-large bridge pile foundations in some importantdiameter varies from 2.5 m to 3 m, and the maximum length is 125 m; the bearing capacity of the post-groutingThe results show that the bearing capacity of the piles are increased in different degrees after grouting, duration of grouting lasting time, are different.In addition, the calculation formula for the post-grouting piles under specified grouting condition was

Keywords： self-balanced testing technique     pile-end post-grouting     bearing capacity     grouting technology    

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Seismic performance of fabricated continuous girder bridge with grouting sleeve-prestressed tendon composite

Frontiers of Structural and Civil Engineering   Pages 827-854 doi: 10.1007/s11709-023-0954-1

Abstract: In this study, a fiber element model of a fabricated concrete pier with grouting sleeve-prestressed tendonsleeve-fabricated pier, and a grouting sleeve-prestressed tendon composite fabricated pier.Under traditional non-near-fault ground motions, the pier top displacements of the grouting sleeve-fabricatedIn addition, the plastic hinge zones of the grouting sleeve-fabricated pier and the composite fabricatedpier shifted to the joint seam and upper edge of the grouting sleeve, respectively.

Keywords： seismic performance     continuous girder bridge     grouting sleeve-prestressed tendon composite connections    

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ideas and engineering practice of high-pressure water-rich fault “outside block and inside strenghthen grouting

Zhang Minqing,Zhang Mei

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 26-34

Abstract: To overcome F11 fault early, the construction technology of "grouting to make solid, using waterwas changed into "outside block and inside strengthen grouting" .for weak water area and strengthened grouting for strong water area, following the principle of "The grouting holes and grouting quantity of "outside block and inside solid grouting"  are 50 % less than those of whole cross section grouting, and the grouting speed is 80 % higher when

Keywords： high-pressure water-rich fault     unevenness     blocking water and strengthen by grouting     outside blockand inside solid grouting     innovation    

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Study on the grouting technology adopted in F1 weathered trough for Xiamen Xiang’an Subsea Tunnel

Guo Xiaohong,Wang Mengshu

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 38-41

Abstract: water inflow and great difficulty in construction in Xiamen Xiang'an Subsea Tunnel,full-sectional groutingreinforcement and waterproofing,5 m grouting inside heading, 70 m along longitudinal direction of tunneland superfine cement single-fluid grouting as major grouting material were applied according to poorMeanwhile,the corresponding parameters of grouting were established after drillings for grouting wereThe research results can provide technical reference for similar projects in grouting and waterproofing

Keywords： Ximen Xiang’an Subsea Tunnel     grouting reinforcement     stability     numerical simulation    

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Clearance grouting process test of Three Gorges Project ship lift rack and nut column

Zhan Jianxia and Li Jihu

Strategic Study of CAE 2013, Volume 15, Issue 9,   Pages 45-49

Abstract:

In order to choose the suitable grouting material and grouting process, and simulate the actual situation of clearance grouting of rack and nut column in ship lift, groutingComparing three kinds of domestic grouting material and the German PAGEL grouting material in groutingIn prototype grouting test, selection of the grouting equipment type, mixing time, templates seal, methodof grouting parameters control of grouting flow were researched, and some applicable grouting material

Keywords： rack     nut column     grouting     ship lift     Three Gorges Project    

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Quantitatively assessing the pre-grouting effect on the stability of tunnels excavated in fault

Xiao YAN, Zizheng SUN, Shucai LI, Rentai LIU, Qingsong ZHANG, Yiming ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1393-1404 doi: 10.1007/s11709-019-0563-1

Abstract: Pre-grouting is a popular ground treatment strategy utilized to enhance the strength and stability ofFirst, how should the grouting size be determined?Second, when should excavation begin after grouting?approach known as discontinuity layout optimization, an efficient node-based upper bound limit analysis methodtunnel section are evaluated, thereby assisting designers by quantitatively assessing the effects of pre-grouting

Keywords： pre-grouting     stability analysis     factor of safety     discontinuity layout optimization    

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Evaluation of the static and dynamic structural performance of segmental pre-stressed concrete box girder bridge after repairing and strengthening

Ali Fadhil NASER, Zonglin WANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 164-177 doi: 10.1007/s11709-013-0196-8

Abstract: The objectives of this study are to explain the repairing and strengthening methods which are used to improve the structural performance of the bridge structure, to analyze the static and dynamic responses after strengthening, and to evaluate the performance of the bridge structure after repairing and strengthening. The methods of repairing and strengthening include reconstruction the deck of the bridge by casting 10 cm layer of concrete, strengthening the web and bottom floor of box girders of middle spans and side spans by sticking the steel plates, strengthening the whole bridge structure by using external pre-stressing tendons, and treatment the cracks. The results of theoretical analysis show that the values of tensile stress and vertical deflection are decreased and the compressive stress is increased after strengthening. There are not tensile stresses are appeared in the sections of the bridge structure. The modal analysis results show that the value of natural frequency is equal to 2.09 Hz which is more than the values before strengthening which is equal to 1.64 Hz, indicating that the stiffness of the bridge structure is improved and the strengthening process is effective to improve the cracks resistance and bearing capacity of the bridge structure.

Keywords： structural performance     steel plates     external pre-stressing     cracks     grouting method     static    

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Waterproofing Technology for Underground Fabricated Structure Joints Based on the Open Cut Method

Huang Mingli,Yang Ze,Tan Zhongsheng and Wang Wenzheng

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 131-139 doi: 10.15302/J-SSCAE-2017.06.019

Abstract: fabricated building and of the current state of waterproofing technology, we propose the use of an epoxy groutingis used to pot the prefabricated structure joint, and study the mechanical properties of the epoxy grouting

Keywords： prefabricated structures     underground structure joint     epoxy grouting material     prefabricated solidified    

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Grouting construction technology of high pressure and rich water fault F11 in Qiyueshan Tunnel

Zhuo Yue,Sun Guoqing

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 82-86

Abstract: Taking the technologies of grouting, water control and rock collapse prevention adopted for fault F11authors present the new construction scheme, new construction technology and new effect examination method

Keywords： fault     technical challenges     new construction scheme     new construction technology     effect examination method    

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Synchronous grouting of large diameter slurry shield in water-rich sandy gravel stratum

Zhang Changqiang,Zhai Zhiguo,Chen Mingjuan,Jin Zhongxiang

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 75-78

Abstract: stratum deformation mechanism information, the empirical formula of the main parameters of synchronized grouting

Keywords： sandy gravel stratum     slurry shield     synchronous grouting     construction technology    

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Analysis for the Stability of Covered Karst Base and a Pre-disposing Way with Pressure Grouting

Sun Chengfang,Yang Anrong,Dong Hanxiong,Peng Shaomin

Strategic Study of CAE 2002, Volume 4, Issue 7,   Pages 56-59

Abstract: karst base, a kind of way, which can be adopted to predispose the covered karst base using pressure groutingThe evaluation of grouting effect indicates this way can be carried out economically and technically.

Keywords： karst base     pressure grouting     evaluation of effect    

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Treatment of Highly Weathered Rock Mass at the Abutment of Earth-Rock Dam in Qiaoqi Hydropower Project

Wang Shougen

Strategic Study of CAE 2005, Volume 7, Issue 3,   Pages 78-83

Abstract: The treatment scheme for the highly weathering rock mass on both abutments and grouting tests and groutingThe feasibility to adopt consolidation grouting and seepage treatment measures is argued and the treatment

Keywords： Qiaoqi Hydropower Station     earth-rock dam     treatment of abutment     highly weathered rock mass     consolidation grouting     curtain grouting    

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Research on large slurry shield excavation parameter control under complex conditions

Wang Baiquan,Ren Yong,Jin Zhongxiang,Gu Yanqi

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 65-69

Abstract: Some measures for shield posture control and a brief introduction on synchronized grouting parameters

Keywords： slurry shield     excavation parameter     synchronized grouting     slurry cycling     shield posture    

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Treatment techniques for Karst disaster of Maluqing Tunnel on Yichang-Wanzhou Railway

Yang Bing,Xiao Gangzhi

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 69-76

Abstract: Finally, curtain grouting technology for stratum consolidation and pile-cap technology for spanning karst

Keywords： tunnel     Karst water burst     advanced geological forecast     curtain grouting    

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Technology of strengthening soil and keeping pressure of large diameter slurry shield inside with high pressure

Meng Haifeng,Su Qinggui,Zhai Zhiguo

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 70-74

Abstract: underground diameter project replacing the cutter teeth inside with high pressure, the application of grouting

Keywords： shield     inside with high pressure     keep pressure     grouting    

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Title Author Date Type Operation

Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Journal Article

Seismic performance of fabricated continuous girder bridge with grouting sleeve-prestressed tendon composite

Journal Article

ideas and engineering practice of high-pressure water-rich fault “outside block and inside strenghthen grouting

Zhang Minqing,Zhang Mei

Journal Article

Study on the grouting technology adopted in F1 weathered trough for Xiamen Xiang’an Subsea Tunnel

Guo Xiaohong,Wang Mengshu

Journal Article

Clearance grouting process test of Three Gorges Project ship lift rack and nut column

Zhan Jianxia and Li Jihu

Journal Article

Quantitatively assessing the pre-grouting effect on the stability of tunnels excavated in fault

Xiao YAN, Zizheng SUN, Shucai LI, Rentai LIU, Qingsong ZHANG, Yiming ZHANG

Journal Article

Evaluation of the static and dynamic structural performance of segmental pre-stressed concrete box girder bridge after repairing and strengthening

Ali Fadhil NASER, Zonglin WANG

Journal Article

Waterproofing Technology for Underground Fabricated Structure Joints Based on the Open Cut Method

Huang Mingli,Yang Ze,Tan Zhongsheng and Wang Wenzheng

Journal Article

Grouting construction technology of high pressure and rich water fault F11 in Qiyueshan Tunnel

Zhuo Yue,Sun Guoqing

Journal Article

Synchronous grouting of large diameter slurry shield in water-rich sandy gravel stratum

Zhang Changqiang,Zhai Zhiguo,Chen Mingjuan,Jin Zhongxiang

Journal Article

Analysis for the Stability of Covered Karst Base and a Pre-disposing Way with Pressure Grouting

Sun Chengfang,Yang Anrong,Dong Hanxiong,Peng Shaomin

Journal Article

Treatment of Highly Weathered Rock Mass at the Abutment of Earth-Rock Dam in Qiaoqi Hydropower Project

Wang Shougen

Journal Article

Research on large slurry shield excavation parameter control under complex conditions

Wang Baiquan,Ren Yong,Jin Zhongxiang,Gu Yanqi

Journal Article

Treatment techniques for Karst disaster of Maluqing Tunnel on Yichang-Wanzhou Railway

Yang Bing,Xiao Gangzhi

Journal Article

Technology of strengthening soil and keeping pressure of large diameter slurry shield inside with high pressure

Meng Haifeng,Su Qinggui,Zhai Zhiguo

Journal Article